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Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
21 Zeilen
1.3 KiB
Diff
21 Zeilen
1.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Callahan <mr.callahhh@gmail.com>
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Date: Mon, 13 Jan 2020 23:47:28 -0600
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Subject: [PATCH] Prevent sync chunk loads when villagers try to find beds
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diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/SleepInBed.java b/src/main/java/net/minecraft/world/entity/ai/behavior/SleepInBed.java
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index 6fe337e8d6db168ea181ed2597674f4829b03c47..e552ae6a7db765301a3d280dbf9348d9dc28b9c2 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/behavior/SleepInBed.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/SleepInBed.java
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@@ -42,7 +42,8 @@ public class SleepInBed extends Behavior<LivingEntity> {
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}
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}
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- BlockState blockState = world.getBlockState(globalPos.pos());
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+ BlockState blockState = world.getBlockStateIfLoaded(globalPos.pos()); // Paper - Prevent sync chunk loads when villagers try to find beds
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+ if (blockState == null) { return false; } // Paper - Prevent sync chunk loads when villagers try to find beds
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return globalPos.pos().closerToCenterThan(entity.position(), 2.0) && blockState.is(BlockTags.BEDS) && !blockState.getValue(BedBlock.OCCUPIED);
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}
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}
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